It was a sun-soaked weekday in the West Country, and all I could think about was the flags. Around the sedate Wiltshire town of Devizes, they fluttered from trees and upstairs windows, with crude versions sprayed across roundabouts. In my adopted home town in Somerset, meanwhile, local desperadoes had vandalised a pedestrian crossing close to a school, which had sparked an online row, partly because they had jettisoned their paint cans down a nearby alley. “Apart from the paint being dumped, I applaud them,” said one Facebook post. There was talk of more crosses appearing at the car park near...